Wang Xueren looked at the students sitting in the back row, glared, waved his hands, and led a group of guards out the door.

Li Xuewu and other students look at me and I look at you. Everyone still doesn’t know what happened.

After the security team and experts also left, Liu Zheng walked to the front, took out the prepared case report and introduced it to everyone.

The previous incident was briefly explained in a few sentences, and then he began to introduce in detail what the investigators had learned and found out in the early stages.

"After preliminary investigation, it was found that the bullet came from a 56 mm small-caliber rifle. The top of the bullet was inverted and shaped like a small mushroom."

As he spoke, he traced the shape and characteristics of bullets with his fingers in the air.

"Under a magnifying glass, you can see 6 rifle lines on the bullet warhead."

"This bullet is not imported, but a domestically produced bullet, and although the caliber of the bullet is small, the rifle it comes from has a lethality of thousands of meters."

Li Xuewu sat down and thought about it. This kind of rifle is actually too common. It has a lethality of over a thousand meters and a caliber of 56 mm. You can find dozens of tons of it in the capital.

Because there are many such guns in the warehouse of the steel rolling mill, they are the main weapons and equipment for the militia training every year.

Xu knew what everyone was thinking, so Liu Zheng continued to introduce, "According to experts' opinions, there are too many points about firearms and it is difficult to find them. So let's start with the location where the bullet was shot and the motivation of the gunman."

"The bullet was fired about 10:30 in the morning on the 10th, and there has been no other movement since then."

Li Xuewu thought about today's time. It's already been a fucking day. It was a snowy day and the wind was blowing and the snow was melting. How could I still find a hair?

Liu Zheng on the stage continued, "From a motive point of view, the important people are on the south side of the banquet hall, and the window where the bullet hole is located does not have people coming and going, and there are no important objects, so it is still impossible to know the shooter's motive.

Cut in".

In fact, when the case has progressed to this stage, everyone has a guess in their minds, that is, it might be an accident.

After all, there are too many guns at this time, and there are so many unintentional injuries reported every year.

They are all cadres from the grassroots level, and no one has ever heard of such a thing.

Especially those cadres who carry guns sometimes have guns at home. Li Xuewu himself has a shotgun.

Li Xuewu used that gun and went hunting with Fu Bin in the mountains. Who cares where your bullets went.

But this kind of accident can happen anywhere, but not here.

Wang Xueren was scolded for this before.

The security department of the auditorium conducted an investigation at the first opportunity, but after the investigation, they found that the gun could not hit anything at all.

Not talking about the power of the bullet, just talking about the position where the bullet is aimed, it means nothing.

So the tense hearts of the guards relaxed a little.

However, Mr. Z, who had been paying attention to the case, was keenly aware of the attitude of the reporter.

Yu Huaiyou specially called over and asked them very seriously to cheer up and be alert and not to let their minds be paralyzed.

A bullet can shoot through the glass silently, regardless of the shooter's intention, which is enough to sound the alarm for the guards.

The purpose is unclear, but the crisis is there.

After Yu Huaiyou finished speaking to Li Xuewu and the others, he went to the small conference room of the hotel and listened to the experts' discussion on the location of the shooting point.

Now there is only one entry point left, and we have to work hard on this.

With the current trace inspection technology, there are only a few experts in the country who can do it.

The experts in the small conference room were still looking for research results from other countries.

In the early days of Big Brother's assistance, there were too many projects, and no one actually valued this kind of technology.

Generally, only those related to small arms research or firearms design will pay attention to this kind of knowledge.

Now I am rummaging through boxes and cabinets, looking through those textbooks page by page, and asking relevant engineers to demonstrate them.

However, the information available at this time is also very limited, so experts rush forward with their eyes closed.

While the experts were discussing, Liu Zheng walked in with the students.

The experts sitting at the conference table frowned and looked at the people who came in with a very unwelcoming attitude.

Isn't this nonsense? Ballistics cannot be solved by large numbers of people and strength. How about digging a well?

Comrade Yu Huaiyou, on the other hand, explained to Comrade Li Zhengfeng, the leading bullet scar expert, "One person is the one who counts the shortcomings, and everyone counts the strengths. These are the outstanding workers on the front line of our industrial safety team. I hope to find a new breakthrough from them."

point".

Li Zhengfeng looked at the students standing around the conference table, nodded and said, "Let's treat a dead horse like a living horse."

Yu Huaiyou grinned. He didn't dare to say anything about a dead horse. Even if the horse really died today, he still had to bring his soul back!

The glass has been dismantled and is being fixed in a wooden frame and displayed in the middle of the conference table.

Because the wooden frame had brackets, Li Xuewu took a few steps forward and looked carefully at the bullet holes in the glass.

There are two spring points on the window glass, inside and outside. The spring point of the inner glass is lower than that of the outer glass.

After Li Xuewu finished reading, he took a step back, while Huang Qian, who was standing with Li Xuewu, stared there for a long time.

Li Zhengfeng originally thought that these students came here to cause trouble, but now he frowned when he saw Huang Qian who was still watching.

"What did you see?"

When Huang Gan saw the old man asking himself, he quickly shook his head and said, "No, it's just these broken lines..."

“Cracked lines are nothing”

Li Zhengfeng curled his lips, knocked on the textbook in his hand, and explained, "Bullets are moving and will swing when encountering obstacles, even when encountering wind."

As he spoke, he raised his eyebrows and asked, "Which department are you in?"

This old man can talk freely in front of Yu Huaiyou, so it seems that his status is not low.

So Huang Qian didn't dare to say anything at the moment, so he could only reply honestly, "I'm from the First Prison in Beijing."

"Hiss~"

Hearing Huang Gan's answer, Li Zhengfeng grinned and the expression on his face froze.

Prison guards also come to give their opinions?!!!

After hearing the expert's explanation, Huang Qian looked at the old man's expression, smiled dryly, and then stepped back.

After Li Zhengfeng glared at Huang Gan, he pointed at the glass and said to Yu Huaiyou, "According to the S-Union textbook, you can draw an arc between the two bullet points, extend the line, and the other end is the shooting point."

Yu Huaiyou looked at the glass on the table, then looked at the distance inside from the side, frowned and asked, "Can you deduce where the gun was fired?"

Li Zhengfeng whispered a few words to the people beside him, and the middle-aged people there also frowned and replied.

Then, Li Zhengfeng nodded and said, "As long as the distance can be measured, the shooting location can be found."

"Okay, please calculate it as soon as possible. The boss is very urgent."

Yu Huaiyou waved his hand and said to Wang Xueren who was standing at the door, "Arrange rooms and calculation tools for Comrade Zhengfeng and others."

"yes!"

Wang Xueren saluted and said, "The tools and room are ready. They are just next door. Please come with me."

Li Zhengfeng nodded to Yu Huaiyou and led the people to the next door.

And here, Yu Huaiyou frowned and looked at the glass on the table, as if he could tell who did it from the glass, and fell into deep thought for a moment.

When the students saw the boss sitting there thinking about something, they didn't dare to disturb him, so they all stood quietly.

Huang Qian, who was standing next to Li Xuewu, touched Li Xuewu lightly and asked in a low voice, "What do you think?"

Li Xuewu narrowed his eyes, turned to Huang Gan and whispered, "Stand."

"What?"

Huang Qian didn't hear clearly what Li Xuewu said, so he asked again.

And Li Xuewu whispered very seriously, "I said, I will stand and watch."

"Grass!...Ugh!"

Huang Gan screamed out loud when he heard Li Xuewu's answer. Then he remembered where this place was and quickly covered his mouth.

But at this moment, everyone was shocked by the sound of grass, and all looked at the position of the two old men.

During this time in the training class, Li Xuewu and Huang Qian were considered to be influential figures.

On the first day of class, he played a trick on everyone. He lowered his identity and planned to conduct a sneak attack, but the class teacher found out.

Later, Li Xuewu became an instant success in the shooting class, and Huang Qian, not to be outdone, showed up in the driving class and became an assistant instructor with a professional driving license.

These two idiots have never stopped. If you say they are uneducated, these big brothers and sisters dare not ignore the report card on the blackboard every day.

After all, these two must be at the top of the rankings. Who can be said to be young but not young?

So light.

But let's say they have excellent grades. They can always create something for you every time they go to class.

The fighting class instructor took half of the class, and Li Xuewu took the other half.

The instructor beat Li Xuewu in the first half of the class, and Li Xuewu beat the instructor in the second half of the class.

The teacher of the case analysis class said at the beginning that Huang Qian was determined to tell the relevant case facts.

Even how it was judged, why the judge at the time judged it like that, and how it was defined, can all be explained one by one.
To be continued...